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ensure av_rescale_q() can be calculated (won't divide by zero) 

Originally committed as revision 11592 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs 2008-01-21 23:43:25 +00:00
parent c14731d8da
commit 7f938dd32b
1 changed files with 1 additions and 1 deletions
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2
libavformat/utils.c
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@ -1426,7 +1426,7 @@ static void av_update_stream_timings(AVFormatContext *ic)
duration = INT64_MIN;
for(i = 0;i < ic->nb_streams; i++) {
st = ic->streams[i];
if (st->start_time != AV_NOPTS_VALUE) {
if (st->start_time != AV_NOPTS_VALUE && st->time_base.den) {
start_time1= av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q);
if (start_time1 < start_time)
start_time = start_time1;